import * as React from 'react';
import { Slot } from '@radix-ui/react-slot';
import { cva, type VariantProps } from 'class-variance-authority';

import { cn } from '@/utils/style';
import { Spinner } from './spinner';
import { IconType } from 'react-icons';

const buttonVariants = cva(
  'inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-zinc-950 disabled:pointer-events-none disabled:opacity-50 dark:focus-visible:ring-zinc-300',
  {
    variants: {
      variant: {
        default:
          'bg-zinc-900 text-zinc-50 shadow hover:bg-zinc-900/90 dark:bg-zinc-50 dark:text-zinc-900 dark:hover:bg-zinc-50/90',
        destructive:
          'bg-red-500 text-zinc-50 shadow-sm hover:bg-red-500/90 dark:bg-red-900 dark:text-zinc-50 dark:hover:bg-red-900/90',
        outline:
          'border border-zinc-200 bg-white shadow-sm hover:bg-zinc-100 hover:text-zinc-900 dark:border-zinc-800 dark:bg-zinc-950 dark:hover:bg-zinc-800 dark:hover:text-zinc-50',
        secondary:
          'bg-zinc-100 text-zinc-900 shadow-sm hover:bg-zinc-100/80 dark:bg-zinc-800 dark:text-zinc-50 dark:hover:bg-zinc-800/80',
        ghost:
          'hover:bg-zinc-100 hover:text-zinc-900 dark:hover:bg-zinc-800 dark:hover:text-zinc-50',
        dashed:
          'border border-zinc-200 bg-white shadow-sm border-dashed hover:bg-zinc-100 hover:text-zinc-900 dark:border-zinc-800 dark:bg-zinc-950 dark:hover:bg-zinc-800 dark:hover:text-zinc-50',
        link: 'text-zinc-900 underline-offset-4 hover:underline dark:text-zinc-50',
      },
      size: {
        default: 'h-9 px-4 py-2',
        sm: 'h-8 rounded-md px-3 text-xs',
        lg: 'h-10 rounded-md px-8',
        icon: 'h-9 w-9',
      },
      iconType: {
        right: 'flex-row-reverse',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  }
);

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
  loading?: boolean;
  Icon?: IconType;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  (
    {
      className,
      variant,
      size,
      asChild = false,
      loading = false,
      Icon,
      iconType,
      ...props
    },
    ref
  ) => {
    const Comp = asChild ? Slot : 'button';

    const icon = Icon ? (
      <Icon
        className={cn({
          'mr-1': props.children && iconType !== 'right',
          'ml-1': iconType === 'right',
        })}
      />
    ) : undefined;
    const children = (
      <>
        {loading ? <Spinner className="mr-1" /> : icon}
        {props.children}
      </>
    );

    return (
      <Comp
        className={cn(buttonVariants({ variant, size, iconType, className }))}
        ref={ref}
        {...props}
        disabled={props.disabled || loading}
        children={children}
      />
    );
  }
);
Button.displayName = 'Button';

export { Button, buttonVariants };
